Unlocking an iPhone with no service means that you can apply it to any community, whatever the one it was initially locked to. This may be helpful if you wish to swap carriers, use your iPhone internationally, or promote it to somebody who makes use of a special service.
There are a number of alternative ways to unlock an iPhone with no service. A method is to make use of a third-party unlocking service. These companies sometimes cost a price, however they’ll normally unlock your iPhone rapidly and simply.